Interlocking

Diorama:Downtown Tulsa -- includes Tulsa Interlocking, Depot and Railway Express
Owner Name:NEONS
Sponsor:Fearless Leader
Date Built:2008
Date Updated:2016
Status:Active
Module Type:8' standard module
Length:8'
Width:2'
Skyboard:12" laminate
Interlocking

Track

Code Brand Turnouts Crossovers Passing Sidings Yard Tracks Industrial Spurs Other Tracks
80 Atlas various Peco red to yellow (cw & ccw), yellow to blue (cw & ccw) none Yes Yes Yes

Electrical

  Wire Connector 110V
Red 12 gauge PP-30
Yellow 12 gauge PP-30
Blue 12 gauge PP-30
Other     Yes
DCC Equipment: UP-5
Powered Accessories: Wall wart for UP-5
Designer Carpentry Track Wiring Scenery Oklahoma Scene Route 66 Scene Prototype RR
Fearless Leader & Pert Rambo Pyro & Pert Pyro Fearless Leader Oklahoma Frisco

Track Plan

Interlocking Track Plan

Sign Board

Tulsa Interlocking -- Yes, this terrible tangle of tracks really did exist! The Tulsa interlocking plant was the crossing of four of Tulsa's railroads, the Frisco, MKT, Midland Valley and Santa Fe. It allowed three of these railroads entrance to the Tulsa Union Depot, which was west of the interlocking. Midland Valley only crossed here and did not access the Tulsa Union Depot trackage. The Santa Fe yard was where the camera is standing and the Santa Fe freight depot was just beyond this module's skyboard.

Description & History

The NEONS (North East Oklahoma N-Scalers) nearly finished with a multi-year project to rebuild, update and authenticate our twenty-year-old diorama depicting the railroad tracks running across the north side of downtown Tulsa, Oklahoma. Part of the original diorama was featured in the May/June 2003 issue of N-Scale Railroading Magazine.

The re-work project was to transfer five 4'modules to three 8' modules, adding a 4' portion that was omitted before. New features are the Denver Street underpass and the de-compression of some tracks into the formerly missing 4' stretch. By modifying these modules from 4'ers to 8'ers, we eliminated a large number of connector tracks which has resulted in easier setup and smoother running. This 3-year project was completed in stages, with the track work, wiring and ballasting completed first, then the buildings were transferred to the new modules with some being rebuilt to better match their prototype, and finally, the remaining scenery was completed.

This historically accurate, 24' diorama depicts the north side of downtown Tulsa, Oklahoma circa 1957. Included on the modules from left to right (East to West) are the Tulsa interlocking where tracks from four railroads all crossed and inter-connected, the Frisco Freight building, the 1930's art deco Tulsa Union Depot with the Main Street overpass, the Railway Express Agency facilities, and the Denver underpass. You are looking south and downtown Tulsa sky-scrapers like the National Bank of Tulsa and Philtower (the office building Waite Phillips of Phillips 66 Oil Company gave to the Boy Scouts of America) would be just behind the skyboard of these modules.

Old photographs from the archives of the Tulsa World and Tulsa Tribune (the local morning and afternoon newspapers) were utilized along with numerous photos from private files to determine how the north side of downtown Tulsa appeared during this time frame. Sanborn maps and old documents from the Frisco railroad archives provided details on track geometry.